GAF OlyBond500 Insulation Adhesive – Part 2, 15-Gallon Drum

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OlyBond500 Part 2 Roofing Insulation Adhesive

Two-component polyurethane adhesive designed to bond insulation boards in new and re-roof applications. Expands and cures quickly to secure boards to most roof substrates within minutes, streamlining installation.


Key Features:

  • Fast Chemical Cure: Secures boards in approximately 4–8 minutes depending on temperature and weather
  • Expanding Application: Dispensed in 3/4"–1" bands that spread and rise for strong, uniform adhesion
  • Versatile Use: Bonds a variety of board stocks to most roof substrates in new or re-roof projects
  • Professional Grade: Two-component polyurethane formula engineered for roofing insulation
  • Compliance & Approvals: UL Classified; FM Approved; Miami-Dade and Florida Building Code approvals

Specifications Table:

Specification Details
Product Name OlyBond500 Insulation Adhesive - Part-2
Brand GAF
Component Two-component polyurethane adhesive (Part 2)
Use Adhere insulation board to insulation board; bond board stocks to most roof substrates
Application Pattern Dispensed in 3/4" to 1" bands that spread to several inches and rise 3/4" to 1" above substrate
Cure Time Approximately 4–8 minutes depending on temperature and weather
Packaging 15 Gallon Drum
Unit of Measure PL
Weight 160 lb
Style Roofing Insulation
Approvals/Certifications UL Classified; FM Approved; Miami-Dade County Approved; Florida Building Code Approved
Applicable Standards ASTM C518; ASTM D1621; ASTM D1622; ASTM D1623; ASTM D2369; ASTM D2842; ASTM D6226
Manufacturer Number 417I
SKU Product Number GAFOB500IA2P

Frequently Asked Questions (FAQ):

Q: Can this adhesive be used on re-roof projects?
A: Yes, it is suitable for both new and re-roof applications and bonds a variety of board stocks to most roof substrates.


Q: How long does it take to set?
A: A chemical cure secures the boards in approximately 4–8 minutes, depending on temperature and weather conditions.


Q: How is the adhesive applied?
A: Dispense in 3/4" to 1" bands; the adhesive spreads and rises, then place and walk the board into position.


Q: Is this product part of a two-component system?
A: Yes, OlyBond500 is a two-component polyurethane adhesive; this is the Part 2 component.


Q: What certifications does it have?
A: UL Classified, FM Approved, and approved by Miami-Dade County and the Florida Building Code.


Architectural Bonding Power for Elevated Roof Systems

This adhesive brings a refined precision to the rooftop, creating a seamless, monolithic bond that feels thoughtfully engineered. I love the way its expanding application forms a uniform, sculptural rise—quiet strength meeting clean performance. Pair it with high-performance insulation boards to craft a roofscape that’s both resilient and elegantly restrained. It’s a smart essential for luxurious, long-lasting building envelopes.


Secure your roofing insulation with confidence—choose OlyBond500 Part 2 for fast, approved, professional-grade adhesion.

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